(Encyclopedia) Constantine I or Constantine the GreatConstantine Ikŏnˈstəntēn, –tīn [key], 288?–337, Roman emperor, b. Naissus (present-day Niš, Serbia). He was the son of Constantius I and Helena…
(Encyclopedia) Constantine II, 316–40, Roman emperor, son of Constantine I. When the empire was divided at the death (337) of Constantine I, among the brothers Constantius II, Constans I, and…
(Encyclopedia) Constantine IV, c.652–685, Byzantine emperor (668–85), son and successor of Constans II. He defended Constantinople against the annual naval attacks of the Muslims, who finally…
(Encyclopedia) Constantine V (Constantine Copronymus), 718–75, Byzantine emperor (741–75), son and successor of Leo III. An able general and administrator, he fought successfully against the Arabs,…
(Encyclopedia) Constantine VI, b. c.770, Byzantine emperor (780–97), son and successor of Leo IV. His mother, Irene, was regent until 790, when she was deposed by a military revolt. Constantine…
(Encyclopedia) Constantine VII (Constantine Porphyrogenitus), 905–59, Byzantine emperor (913–59). He acceded after the brief reign of his uncle Alexander, who succeeded Constantine's father, Leo VI.…
(Encyclopedia) Constantine XI (Constantine Palaeologus), d. 1453, last Byzantine emperor (1449–53), brother and successor of John VIII. To secure Western aid against the Turkish assault on what…
(Encyclopedia) Ferdinand, 1793–1875, emperor of Austria (1835–48), son and successor of Emperor Francis I (who also, as Francis II, had been the last Holy Roman emperor). A well-meaning monarch in…
(Encyclopedia) John I (John Tzimisces)John Itsĭmĭsˈēz [key], c.925–976, Byzantine emperor (969–76). With the aid of Emperor Nicephorus II's wife, Theophano, John had Nicephorus murdered and himself…
(Encyclopedia) John II (John Comnenus)John IIkŏmnēˈnəs [key], 1088–1143, Byzantine emperor (1118–43), son and successor of Alexius I. He was crowned despite the intrigues of his sister, Anna Comnena…